DF11-28DS-2DSA(01) Equivalent & Substitute Parts

Part Overview

The DF11-28DS-2DSA(01) is a 28-position receptacle connector manufactured by Hirose Electric Co Ltd, designed for board-to-board or cable applications with 0.079" (2.00mm) pitch spacing. This connector features through-hole mounting, gold-plated mating contacts, and friction lock fastening. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	28
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Termination	Press-Fit, Solder
Contact Finish - Mating	Gold
Current Rating	2A
Voltage Rating	250V
Operating Temperature	-30°C ~ 85°C
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution for the DF11-28DS-2DSA(01) is determined by the following critical parameters:

Primary Compatibility Criteria:

28-position connector configuration
0.079" (2.00mm) pitch spacing (both mating and row spacing)
2-row arrangement
Through-hole mounting capability
UL94 V-0 flammability rating
Operating temperature range of -30°C to 85°C or better
Minimum 2A current rating and 250V voltage rating

Identified Substitutes:

DF11-28DS-2DSA(06) - Direct manufacturer equivalent with identical mechanical and electrical specifications. Primary difference is contact finish post material (Tin vs. Nickel) and RoHS compliance status.
SWR204-NRTN-D14-ST-GA - Cross-manufacturer substitute from Sullins Connector Solutions. Functionally compatible based on pitch, position count, row configuration, and through-hole mounting. Connector type differs (Header vs. Receptacle), requiring mating pair consideration.

Parameter Comparison

Parameter	DF11-28DS-2DSA(01)	DF11-28DS-2DSA(06)	SWR204-NRTN-D14-ST-GA
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Sullins Connector Solutions
Connector Type	Receptacle	Receptacle	Header
Contact Type	Female Socket	Female Socket	Male Pin
Number of Positions	28	28	28
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Contact Finish - Mating	Gold	Gold	Tin
Current Rating	2A	2A	3A per Contact
Voltage Rating	250V	250V	50V
Operating Temperature	-30°C ~ 85°C	-30°C ~ 85°C	-25°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

DF11-28DS-2DSA(06) is the primary substitute for DF11-28DS-2DSA(01). Both parts are manufactured by Hirose Electric Co Ltd within the same DF11 series and maintain identical mechanical and electrical specifications. The DF11-28DS-2DSA(06) is currently in active production status, whereas the original part is obsolete. The DF11-28DS-2DSA(06) achieves RoHS compliance, addressing regulatory requirements for new designs and production runs.

SWR204-NRTN-D14-ST-GA serves as a cross-manufacturer alternative when Hirose parts are unavailable. This Sullins connector maintains compatible pitch, position count, and row spacing. However, the voltage rating of 50V is significantly lower than the original 250V specification, restricting its use to lower-voltage applications. The connector type difference (Header vs. Receptacle) requires verification that mating pairs are compatible with existing board designs.

Selection should prioritize DF11-28DS-2DSA(06) for direct replacement in applications requiring the original 250V rating and gold mating contact finish. SWR204-NRTN-D14-ST-GA is suitable only for applications operating below 50V with compatible mating connectors.

Frequently Asked Questions (FAQ)

Q: Can DF11-28DS-2DSA(06) be used as a direct replacement for DF11-28DS-2DSA(01)?

A: Yes. Both connectors share identical mechanical dimensions, pitch spacing, position count, row configuration, current rating, voltage rating, and operating temperature range. The primary differences are contact finish post material (Tin vs. Nickel) and RoHS compliance status. DF11-28DS-2DSA(06) is the recommended substitute due to active production status.

Q: What are the limitations of using SWR204-NRTN-D14-ST-GA as a substitute?

A: The SWR204-NRTN-D14-ST-GA has a maximum voltage rating of 50V, compared to the original part's 250V rating. This restricts its use to low-voltage applications. Additionally, it is a Header connector (male pins) rather than a Receptacle (female sockets), requiring compatible mating connectors on the opposing board or cable assembly.

Q: Are all three connectors compatible with the same PCB footprint?

A: DF11-28DS-2DSA(01) and DF11-28DS-2DSA(06) share identical through-hole mounting specifications and can use the same PCB footprint. SWR204-NRTN-D14-ST-GA has the same pitch and row spacing but differs in overall dimensions and shrouding design, requiring PCB layout verification before substitution.

Q: What is the significance of the contact finish difference between DF11-28DS-2DSA(01) and DF11-28DS-2DSA(06)?

A: Both parts feature gold-plated mating contacts (8.00µin thickness). The difference lies in the post finish: DF11-28DS-2DSA(01) uses Nickel (39.4µin), while DF11-28DS-2DSA(06) uses Tin (78.7µin). This affects solderability and long-term reliability in solder joint formation but does not impact mating contact performance.

Q: Is RoHS compliance a factor in selecting between these substitutes?

A: RoHS compliance status should be considered based on application requirements and regulatory jurisdiction. DF11-28DS-2DSA(06) is RoHS Compliant, while DF11-28DS-2DSA(01) is RoHS non-compliant. SWR204-NRTN-D14-ST-GA is ROHS3 Compliant. For new designs and production in regulated markets, RoHS-compliant options are required.

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